Lightning Arrester, Lightning Surge Arrester ,Metal Oxide Surge Arrester 3KV to 220kv ZR-12KV indoor
General Description
1.Small size,Light weight,resistance to impact,no collision damage during transportation,flexible installation,suitable for use in the switch cabin.
2.Special structure,the overall compression molding,no air gap,good sealing performance,moisture-proof and explosion-proof
3.Large creepage distance,good hydrophobicity,strong stain resistance,stable performance and reduce operation maintenance.
4.Unique formula of zinc oxide varistor, small leakage current,slow aging,long service life.
5.With DC reference voltage,rectangular flow capacity and high current and large current withstand capacity are higher than standard requirement.
Usual Service Condition
Power frequency:48Hz ~60Hz
Ambient temperature:-40°C~+40°C
Maximum wind speed: not exceed 35m/s
Altitude: not exceed 2000m
Earthquake intensity: not exceed 8 degrees
Ice thickness: not exceed 10 meters.
Long-term applying voltage does not exceed the maximum coutinuous operating voltage.
Type Specifications
Main Technical Parameters
|
Service
condition
|
System
nominal
voltage
kV
|
Continous
operation
voltage
kV
|
DC Min
U1mA
reference
voltage
kV≥
|
Residual voltage kV≥ |
Square
wave
current
impulse
withstand A
|
High
current
impulse
kA
|
|
1/4μs
Steep
current
impulse
|
8/20μs
Lightning
current
impulse
|
30/60μs
Switching
current
impulse
|
|
5kA
Substation
(Z)
|
3 |
3.2 |
7.2 |
14.5 |
13.5 |
11.5 |
200 |
65 |
| 6 |
4 |
14.4 |
31 |
27 |
23 |
| 6 |
8 |
14.4 |
31 |
27 |
23 |
| 10 |
13.6 |
24 |
51.8 |
45 |
38.3 |
| 35 |
23.4 |
73 |
154 |
134 |
114 |
400 |
100 |
| 40.8 |
73 |
154 |
134 |
114 |
| 42.2 |
73 |
154 |
134 |
114 |
| 43.2 |
73 |
154 |
134 |
114 |
| 66 |
67.2 |
121 |
254 |
221 |
188 |
600 |
100 |
| 72.5 |
130 |
258 |
224 |
190 |
| 75.5 |
134 |
270 |
234 |
198 |
| 110 |
75 |
140 |
287 |
250 |
212 |
600 |
100 |
| 78 |
145 |
299 |
260 |
221 |
| 80 |
148 |
305 |
266 |
226 |
| 84 |
157 |
323 |
281 |
239 |
| 88.2 |
168 |
347 |
302 |
256 |
